Method of estimating the error in the calculation of the position of a mobile by a GPS receiver, and GPS receiver for implementing this method
US5373298A · kind A · utility
55Cited by
0References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 5, 1993 |
| Grant date | Dec 13, 1994 |
| Priority date | — |
| Expiry date | Oct 5, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/42
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a method of calculation by a GPS receiver of the position of a mobile in space and time relative to a predetermined frame of reference, the position is calculated from data supplied by at least four GPS satellites selected by the GPS receiver to form a calculation constellation. The method includes the step of estimating the error in the position calculation. This error is estimated by the GPS receiver for each calculated position. The estimated error therefore varies with the position of the mobile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.